| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache license, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the license for the specific language governing permissions and |
| * limitations under the license. |
| */ |
| package org.apache.logging.log4j.layout.json.template.resolver; |
| |
| import org.apache.logging.log4j.layout.json.template.util.JsonWriter; |
| |
| final class StackTraceObjectResolver implements StackTraceResolver { |
| |
| private final TemplateResolver<StackTraceElement> stackTraceElementResolver; |
| |
| StackTraceObjectResolver(final TemplateResolver<StackTraceElement> stackTraceElementResolver) { |
| this.stackTraceElementResolver = stackTraceElementResolver; |
| } |
| |
| @Override |
| public void resolve( |
| final Throwable throwable, |
| final JsonWriter jsonWriter) { |
| // Following check against the stacktrace element count is not |
| // implemented in isResolvable(), since Throwable#getStackTrace() incurs |
| // a significant cloning cost. |
| final StackTraceElement[] stackTraceElements = throwable.getStackTrace(); |
| if (stackTraceElements.length == 0) { |
| jsonWriter.writeNull(); |
| } else { |
| jsonWriter.writeArrayStart(); |
| for (int stackTraceElementIndex = 0; |
| stackTraceElementIndex < stackTraceElements.length; |
| stackTraceElementIndex++) { |
| if (stackTraceElementIndex > 0) { |
| jsonWriter.writeSeparator(); |
| } |
| final StackTraceElement stackTraceElement = stackTraceElements[stackTraceElementIndex]; |
| stackTraceElementResolver.resolve(stackTraceElement, jsonWriter); |
| } |
| jsonWriter.writeArrayEnd(); |
| } |
| } |
| |
| } |